Method and system for audio routing in a vehicle mounted communication system

A method of routing audio for a vehicle mounted communication system, the method comprising:

• activating a (Push-To-Talk) PTT button associated with a handheld microphone;
• making a first determination of whether a short range wireless device is operationally coupled with a wireless communication module, comprised in the vehicle mounted communication device;
• making a second determination, via a hook sense circuit configured to detect whether the handheld microphone is located in its on-hook location or whether it has been physically removed from its on-hook location and is thus off-hook, of whether the handheld microphone is operating in an on-hook mode or an off-hook mode;
• switch to receiving first audio signals from a second microphone comprised in a short range wireless device communicatively coupled to the vehicle mounted communication system when the first determination is that the short range wireless device is operationally coupled with the wireless communication module and the second determination is that the handheld microphone is operating in the on hook mode;
• and
• switch to receiving first audio signals from the handheld microphone when the first determination is that the short range wireless device is operationally coupled with the wireless communication module and the second determination is that the handheld microphone is operating in the off hook mode.